Power Electronics / Power Management


Latest Articles

Design: SEPIC regulator with zero input-ripple current
18 October 2006, Hi-Q Electronics
SEPIC (single ended primary inductance converter) topology offers a constant output voltage over a wide input voltage range. The input voltage can be lower, equal or higher than the output voltage. The ...

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LDO regulator has unique features
18 October 2006, Tempe Technologies, Altron Arrow, Electrocomp
Microchip has introduced what it says is the industry’s first 1,5 A LDO that incorporates shutdown, power good, programmable power good delay and bond-wire compensation on a single chip. The MCP1727 ...

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Economic power supplies
18 October 2006, RS South Africa
The Iso-Tech IPS303DD single output power supply unit from RS Components is used to power electronic circuitry. It can supply up to 30 V d.c., 0-3 A. The unit features separate 3-digit LED voltage and ...

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Current-shunt monitor is complete with integrated comparators and voltage reference
18 October 2006
A complete comparison solution that combines a high-side current-sense amplifier, two comparators and a voltage reference in a small 14-pin package is available from Texas Instruments. The unique integration ...

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Robust high-voltage ICs simplify HID ballast circuits and extend lamp life
18 October 2006, News & events
International Rectifier has introduced the IRS2453D family of integrated 600 V self-oscillating full-bridge driver ICs for HID ballast applications including general lighting, outdoor street lighting ...

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Power MOSFETs now available in high thermal efficiency compact package
18 October 2006, News & events
STMicroelectronics' new power devices that are assembled in the metal topped PolarPAK package, offer superior thermal performance and increased power density for components used in high current power ...

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Compatible POL solution for low current applications launched
18 October 2006
Power-One and Micrel have announced availability of a Z-One compatible solution for low-current applications. The solution is based on Micrel's MIC68000 family of linear regulators that are now interoperable ...

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NiMH battery charger IC detects and avoids charging defective or incorrect batteries
18 October 2006, CST Electronics, Electrocomp
Dallas Semiconductor has introduced a loose-cell NiMH charger integrated circuit that detects and avoids charging primary alkaline cells, Lithium primary cells, and defective NiMH or NiCd cells. Designed ...

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Users can customise standard reference power designs online
18 October 2006
International Rectifier has expanded its myPOWER online design services by introducing its POWIR+ chipset reference designs and enhanced online design services, to simplify and accelerate power management ...

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Rugged DC power systems adapt to a wide range of operating conditions
18 October 2006
Power-One's Aspiro 48 V power system, providing shelf-based rectification, battery management, and distribution, utilises digitally-controlled rectifiers that can adapt, without derating, to a wide range ...

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30 W power supply boasts 5 x 10 cm footprint
18 October 2006
Operating over a 90 to 264 V a.c. input range, Power-One’s BLP30-3000G power supply provides 30 W in a 5 x 10 cm footprint. Outputs are +5 V at 3,5 A (5 A peak), +12 V d.c. at 2 A, and -12 V d.c. at ...

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35 W open-frame type power supply in smaller footprint
18 October 2006, Current Automation
Mean Well has introduced a 35 W open frame type switching power supply in 10,2 x 5,1 cm format, which targets general industrial applications with requirements for miniature size. The 12,7 x 7,6 cm PCB ...

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Slim-line bench power supply
18 October 2006, Mimic Components
The PSU 130 is a slim-line power supply for bench-top use. It has a constantly adjustable output ranging from 1,5 V to 30 V at up to 1 A. The output voltage can be adjusted to within 0,1 V throughout ...

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Quad power sequencer saves board space
18 October 2006, Communica
Supertex has introduced a new power supply sequencer IC with four outputs, each capable of sequencing power-up and power-down. The PS12 delivers an integrated power sequencing solution for use in telecoms ...

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Constant-current, 8-bit LED driver with diagnostics
18 October 2006
austriamicrosystems has unveiled an innovative 8 channel constant current LED driver with diagnostics function. The AS1109 LED driver has advanced error diagnostics for open and shorted LED. A fast 30 ...

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800 mA step-down converter portable systems
4 October 2006, Hi-Q Electronics
AnalogicTech’s AAT1142 is a voltage­scaling step-down converter for portable applications. Supplying up to 800 mA output current, the device is the first voltage-scaling step-down converter to offer dynamic ...

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Power supply management - principles, problems, and parts
4 October 2006
Power supply designers are using flexible supply monitoring, sequencing, and adjustment circuits to manage their systems. This article discusses why and how. The monitoring and control of a growing number ...

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Buck regulators have very high power density
4 October 2006, Altron Arrow
National Semiconductor has expanded its high power-density regulator line with the LM2830/1/2. These regulators are monolithic, high-frequency, PWM step-down DC-DC converters. According to the manufacturer, ...

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1 kW power supply is 1U high
4 October 2006, Current Automation
Mean Well has introduced its RSP-1000 series – a 1000 W enclosed type switching power supply with power factor correction (PFC) and parallel function. Intended for the 1U low profile and high wattage ...

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Efficient DC-DC converters
4 October 2006, Sivan Electronic Supplies
Cosel's DC-DC converter modules offer high efficiency (synchronous rectifier circuit) and have built-in overcurrent protection circuits. The SUW1R5 modules are available in SMD or through-hole mounting ...

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